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🔧 EC3 (Embodied Carbon in Construction Calculator)

EC3 (Embodied Carbon in Construction Calculator)

A free and easy to use tool that allows benchmarking, assessment and reductions in embodied carbon, focused on the upfront supply chain emissions of construction materials.

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Overview

The Embodied Carbon in Construction Calculator (EC3) is a free, cloud-based tool developed by the non-profit Building Transparency. It enables users to benchmark, assess, and reduce the embodied carbon of construction materials by utilizing a database of third-party verified Environmental Product Declarations (EPDs). The tool integrates with BIM models and construction estimates to analyze a project's overall carbon footprint, helping stakeholders make informed decisions during design and procurement to specify and purchase low-carbon materials.

✨ Key Features

  • Benchmarking and assessment of embodied carbon
  • Database of digital, third-party verified EPDs
  • Integration with BIM and construction estimating tools
  • Project-level embodied carbon tracking
  • Comparison of different material suppliers
  • Open-access and free to use

🎯 Key Differentiators

  • Completely free and open-access
  • Focus on procurement and material selection
  • Large, digitized EPD database

Unique Value: Provides free, open, and actionable embodied carbon data to empower low-carbon material specification and procurement across the construction industry.

🎯 Use Cases (4)

Architects and engineers performing early-stage design analysis Contractors making low-carbon procurement decisions Owners setting embodied carbon reduction targets for projects Policymakers creating EPD requirements and carbon limits

✅ Best For

  • Used by Microsoft to reduce concrete and steel emissions by 30-60% across its building portfolio.

💡 Check With Vendor

Verify these considerations match your specific requirements:

  • Operational carbon calculations
  • Full life-cycle assessment (LCA) beyond cradle-to-gate (A1-A3) stages

🏆 Alternatives

One Click LCA Tally Athena Impact Estimator

Unlike paid LCA tools, EC3 is free and focuses specifically on the procurement phase (A1-A3 emissions), making it highly accessible for contractors to compare and select lower-carbon products.

💻 Platforms

Web

🔌 Integrations

Autodesk (BIM 360, Revit, Takeoff) cove.tool Climate Earth mindfulMATERIALS Sustainable Minds Tally RIB CostX API

🛟 Support Options

  • ✓ Email Support

💰 Pricing

Contact for pricing
Free Tier Available

Free tier: The entire tool is free and open access.

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